String.Chars Property (Int32)
Assembly: mscorlib (in mscorlib.dll)
Parameters
- index
-
Type:
System.Int32
A position in the current string.
| Exception | Condition |
|---|---|
| IndexOutOfRangeException | index is greater than or equal to the length of this object or less than zero. |
The index parameter is zero-based.
This property returns the Char object at the position specified by the index parameter. However, a Unicode character might be represented by more than one Char. Use the System.Globalization.StringInfo class to work with Unicode characters instead of Char objects. For more information, see the "Char Objects and Unicode Characters" section in the String class overview.
In C#, the Chars property is an indexer. In Visual Basic, it is the default property of the String class. Each Char object in the string can be accessed by using code such as the following.
The following example demonstrates how you can use this indexer in a routine to validate a string.
Console.Write("Type a string : ") Dim myString As String = Console.ReadLine() Dim i As Integer For i = 0 To myString.Length - 1 If Uri.IsHexDigit(myString.Chars(i)) Then Console.WriteLine("{0} is a hexadecimal digit.", myString.Chars(i)) Else Console.WriteLine("{0} is not a hexadecimal digit.", myString.Chars(i)) End If Next ' The example produces output like the following: ' Type a string : 3f5EaZ ' 3 is a hexadecimal digit. ' f is a hexadecimal digit. ' 5 is a hexadecimal digit. ' E is a hexadecimal digit. ' a is a hexadecimal digit. ' Z is not a hexadecimal digit.
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1